OK guys, I'm in a pretty bad spot.

I'm working on reducing my expenses, which are about $1500/month including rent, utilities, car insurance, phone bill, food, and school supplies. I get $1375/month (approx) dispersed three times per year in financial aid, almost all grants since I aged out of the foster system in California and attend a UC. I'm in my second year, by the way. Last year, I made about $6,000 from working, and had another $5,000 in savings that I burned through in addition to all of my grants. This year I am not working because I decided to double major so I really need all my time to study.

I was going to apply for more private scholarships but then my school's financial aid office told me this: they calculate "cost of attendance" based on what they expect a student's living expenses to be, and since the aid I am receiving is already the same amount as my "cost of attendance", if I received a new scholarship they would just reduce one of my existing grants to match. This applies to anything classified as a "student loan" too, regardless of whether it's subsidised or from a private bank. Therefore, there is NO way for me to receive more income in the form of scholarships or student loans.

I could get a job, but then I would either need to drop the computer science major (I've made more progress toward math) which seems like a poor long-term financial decision, or take like 6 years to graduate, which would probably cost me an extra $30,000 in tuition because I wouldn't receive financial aid after the first 4 years (I think).

In addition to my living expenses, I have around $7,000 of debt - half of that is a car loan from a friend who has kindly frozen my repayment plan until I get my shit sorted out. There's only about $600 in credit card debt, $500 in small debts to friends who've bailed me out of bad situations, and somewhere between $1,100 and $3,000 in unpaid traffic citations/vehicle registration fees/late fees related to those.

I've been thinking that it would make the most financial sense to just take out a big student loan to consolidate my debt and supplement my living stipend, since I'm currently racking up hundreds of $$ per month in late fees from the DMV. With my CS degree and connections I have from school, I can hopefully get a job making $70k /year right out of college, so I could pay off that debt in a year or two. The problem, as I explained above, is that I can't take out a "student loan" because it'll have to go through my school's financial aid office when the bank verifies my student status, and then my school will reduce my grants.

SO I'm looking for a loan I can take out now and pay after I graduate that doesn't count as a student loan. Or any other financial advice, really... I know I am dumb and got myself into this mess, but I'm trying to become a better adult (I turned 20 yesterday!).

EDIT: to everyone telling me not to double major: I'm madly passionate about both mathematics and computer science, so I'm not going to consider that.

Everyone says I should sell my car.... but it has so much cosmetic damage that I'd probably only get $2-3k for it. Since I owe over $4k and it runs just fine, doesn't it make more sense to drive the car for the next 8 years or so than sell it for a loss now and end up needing to buy a new car when I graduate in 2.5 years? I live in California (not the bay area) so public transit isn't really a thing; I can bike to class but for anything further away than school I'm fucked.